THE BRONX - Ten people were indicted in what authorities are calling the largest crackdown on synthetic marijuana in New York City.

Officers and undercover agents swarmed 80 stores across the city Wednesday, looking for the drug often marketed as K2 or Spice.

The raid is part of an indictment against 10 defendants who the U.S. Attorney's Office in Manhattan says were involved in a massive, citywide distribution and manufacturing of synthetic marijuana. Investigators say the drug wound up on some store shelves.